2004 US1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4511946241 ± 1.12e-07
Semi-major axis (a)1.2843434208 AU ± 9.75e-10
Inclination (i)21.40481858° ± 1.20e-05
Long. of Asc. Node (Ω)223.30819992° ± 3.07e-06
Arg. of Perihelion (ω)74.33799385° ± 1.37e-05
Mean Anomaly (M)217.16343921° ± 4.38e-06
Mean Motion (n)0.6771588023°/day ± 7.71e-10
Perihelion dist (q)0.70485457 AU ± 1.43e-07
Aphelion dist (Q)1.86383227 AU ± 1.43e-07
Orbital Period1.45553197 yr ± 1.66e-09
Physical Parameters
H (abs. magnitude)20.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.317″
Uncertainty0
Orbit TypeApollo
MOID0.065244 AU
Observations Used261
Oppositions6
Arc Total2004-2023
First Observation Used2004-10-18
Last Observation Used2023-12-08
Observations (281)
Date Type RA Dec Mag Band Observatory
2020-11-06 22:08:05 C 01 23 17.22 +13 21 01.7 V Z99
2020-11-06 22:10:02 C 01 23 17.40 +13 20 51.8 V Z99
2020-11-06 22:12:21 C 01 23 17.63 +13 20 40.3 V Z99
2020-11-06 22:14:41 C 01 23 17.87 +13 20 28.3 V Z99
2020-11-06 22:24:59 C 01 23 18.51 +13 19 39.8 V K87
2020-11-06 22:26:00 C 01 23 18.62 +13 19 34.4 V K87
2020-11-06 22:27:03 C 01 23 18.68 +13 19 29.1 V K87
2020-11-07 20:59:56 C 01 25 39.77 +11 31 52.6 V 160
2020-11-07 21:04:55 C 01 25 40.22 +11 31 29.8 V 160
2020-11-07 21:09:55 C 01 25 40.65 +11 31 07.3 V 160
2020-11-07 21:30:21 C 01 25 42.48 +11 29 30.8 V K87
2020-11-07 21:31:28 C 01 25 42.57 +11 29 25.5 V K87
2020-11-07 21:32:37 C 01 25 42.66 +11 29 20.1 V K87
2020-11-08 00:07:44 C 01 26 00.02 +11 17 50.8 V W46
2020-11-08 00:21:35 C 01 26 01.28 +11 16 48.9 V W46
2020-11-08 00:46:47 C 01 26 03.51 +11 14 57.3 V W46
2020-11-09 04:07:39 C 01 28 34.71 +09 19 38.1 V V19
2020-11-09 04:47:28 C 01 28 37.75 +09 16 59.8 V V19
2020-11-09 05:25:35 C 01 28 40.69 +09 14 29.3 V V19
2020-11-09 19:33:04 C 01 29 53.92 +08 20 06.9 o K88
2020-11-09 19:34:06 C 01 29 54.01 +08 20 03.1 o K88
2020-11-09 19:35:10 C 01 29 54.07 +08 19 59.0 o K88
2020-11-10 06:32:44 C 01 30 46.72 +07 40 17.0 V 703
2020-11-10 06:40:21 C 01 30 47.26 +07 39 49.3 V 703
2020-11-10 06:47:58 C 01 30 47.83 +07 39 23.1 V 703
2020-11-10 06:55:34 C 01 30 48.34 +07 38 56.1 V 703
2020-11-10 08:51:48 C 01 30 58.372 +07 32 14.28 U F51
2020-11-10 09:06:20 C 01 30 59.361 +07 31 22.97 U F51
2020-11-10 09:20:58 C 01 31 00.357 +07 30 31.44 U F51
2020-11-10 09:35:09 C 01 31 01.319 +07 29 41.68 U F51
2020-11-10 11:01:32 C 01 31 07.27 +07 24 38.8 V T05
2020-11-10 11:09:29 C 01 31 07.83 +07 24 10.5 V T05
2020-11-10 11:30:06 C 01 31 09.27 +07 22 58.0 V T05
2020-11-10 11:41:22 C 01 31 10.03 +07 22 18.9 V T05
2020-11-10 11:54:24 C 01 31 11.01 +07 21 34.0 V T05
2020-11-10 13:31:38 C 01 31 21.26 +07 15 50.0 q D29
2020-11-10 13:52:01 C 01 31 22.66 +07 14 39.8 q D29
2020-11-10 14:12:22 C 01 31 24.02 +07 13 30.3 q D29
2020-11-10 20:11:00 C 01 31 52.67 +06 53 03.7 V 160
2020-11-10 20:15:39 C 01 31 52.95 +06 52 47.4 V 160
2020-11-10 20:19:58 C 01 31 53.22 +06 52 33.4 V 160
2020-11-13 04:56:10 C 01 35 54.99 +04 03 19.2 V 703
2020-11-13 05:04:20 C 01 35 55.44 +04 02 58.0 V 703
2020-11-13 05:12:30 C 01 35 55.89 +04 02 36.6 V 703
2020-11-13 05:20:40 C 01 35 56.38 +04 02 14.4 V 703
2020-11-13 09:49:50 C 01 36 13.102 +03 50 33.22 U F51
2020-11-13 10:57:02 C 01 36 16.865 +03 47 38.04 U F51
2020-11-13 11:11:11 C 01 36 17.673 +03 47 01.20 U F51
2020-11-16 06:27:08 C 01 40 22.72 +01 13 55.0 V G96
2020-11-16 06:34:33 C 01 40 23.08 +01 13 40.1 V G96